Überorgan, created from multiple bus-size biomorphic balloons, each with its horns tuned to a different note in an octave, is a gargantuan self-playing organ. Its musical score consists of a 200-foot-long scroll of dots and dashes encoding old hymns, pop classics, and improvisational ditties. Tim Hawkinson explains: "The score is deciphered by the organ's brain--a bank of light-sensitive switches--and then reinterpreted by a series of switches and relays that translate the original patterns into nonrepeating variations of the score."